This book covers three fundamental problems at the interface of multi-project management and human resource management: the selection of projects, the composition of small project teams, and workload leveling. Matthias Walter proposes optimization models and solution methods for these problems,...

Competitive tendering of local bus services has received increased attention in Germany, but little is known about the factors affecting tendering prices. Based on a comprehensive dataset of 157 tender procedures, we show that contract prices have regionally varying determinants and...

This paper evaluates cost efficiency and some of its managerial determinants in Germany's local public transport. A heteroscedastic stochastic frontier approach reveals that a high degree of tramcar utilisation and a high outsourcing degree influence the efficiency predictions positively. Mean...

Germany's water supply industry is characterized by a multitude of utilities and widely diverging prices, possibly resulting from structural differences beyond the control of firms' management, but also from inefficiencies. In this article we use Data Envelopment Analysis and Stochastic Frontier...

Germany's water supply industry is characterized by a multitude of utilities and widely diverging prices, possibly resulting from structural differences beyond the control of firms’ management, but also from inefficiencies. In this article, we use Data Envelopment Analysis and Stochastic...